Package version bumps

[natsukagami]

• Update m1n1 to 1.2.9
• Update linux-asahi to 6.3-6
• Update uboot-asahi to 2023.4.asahi2-1
• Update asahi-fwextract to 0.5.4
• Update mesa to 23.2.0_pre20230606-1

I also added the rest of them to the flake packages output, to make debugging easier...

[tpwrules]

Unfortunately it looks like the new U-Boot has problems booting a flash drive. Will try to work on a fix over the next week.